Two Higgs 双重模型中 $e^+e^-\to t\bar{t}H^0$ 的大树级 CP 违背

S. Bar-Shalom; D. Atwood; G. Eilam; R. R. Mendel; A. Soni

doi:10.1103/PhysRevD.53.1162

Two Higgs 双重模型中 $e^+e^-\to t\bar{t}H^0$ 的大树级 CP 违背

高能物理 - 唯象学 2009-10-28 v1

作者: S. Bar-Shalom , D. Atwood , G. Eilam , R. R. Mendel , A. Soni

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摘要

We find a large CP violation effect within the Two-Higgs-Doublet-Model for the reaction $e^+e^-\to t\bar{t}H^0$ at future linear colliders. The CP-asymmetry arises already at the tree level as a result of interference between diagrams with $H^0$ emission from $t$ (and $\bar{t}$ ) and its emission from a $Z^0$ and can be about 10--20\%. In the best case one needs a few hundred $t\bar{t}H^0$ events to observe CP violation at the 3 $\sigma$ level.

关键词

两重希格斯双重模型 CP 违背树级效应 $e^+e^-$ 碰撞器 $t\bar{t}H^0$ 线性碰撞器 CP 偏振性 Z 玻色子

引用

@article{arxiv.hep-ph/9508314,
  title  = {Large Tree Level CP Violation in $e^+e^-\to t\bar{t}H^0$ in The Two Higgs Doublet Model},
  author = {S. Bar-Shalom and D. Atwood and G. Eilam and R. R. Mendel and A. Soni},
  journal= {arXiv preprint arXiv:hep-ph/9508314},
  year   = {2009}
}

备注

UU encoded tar compressed tex file with postscript figures

Two Higgs 双重模型中 $e^+e^-\to t\bar{t}H^0$ 的大树级 CP 违背

摘要

关键词

引用

备注

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